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JOHN Y, HAMILTON, OF CLINTON-MASSACHUSETTS, ASSIGNOR TOv GEORGE CROMRTON, OF WORCESTER, MASSACHUSETTS.

Letters Patent No. 61,553.5, dated January 29, 1867.

IMPROVEMENT IN SHUTTLES POR NARROW-WARE LOOMS.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, JOHN Y. HAMILTON, of Clinton, in the county'of Worcester, and State of .Mssachuf setts, have invented an Improvement in Shuttles for-NarroW-Ware Looms; and I do hereby declare that the following, taken in connection with the drawings which accompany and'iorm part of this specification, is a description of my,I invention suicient to enable those Vskilled in the art to practise it.

.The invention relates to the method of applying the pirn in shuttles for narrow-ware looms, and consists in not only employing aspring to create tension upon the bobbin, but also in sohingngthe'pirn thatiit may be swung out from the shuttle (Without removal therefrom) for reception or change of the bobbin, and in applying a spring to such hinged pirn to keep itnormally in position.

The drawings represent ashuttle embodying the invention; va showing the same in plan; B a vertical section in line of the pirn; C a vertical cross-section on line a: x. A denotes the frame of' the shuttle constructed inthe ordinary manner; b the tension wire held up to the surface of the bobbin by a spring c.; d the pirn or spindle upon which the bobbin or spool is supported. Usually this pirn is merely pressed intovposition, one end entering a bearing in one end of the shuttle and the other end being bent and pressed into aslo't extendinglfrom the upper side of the'shuttle; but the pirn so applied is apt'to Work loose and to be accidentally thrown or drawn from the shuttle, the tension spring and the draught upon the thread both having a tendency to force or draw it from position. To remedy these defects, I hinge the pirn at one end to the shuttle, or so secure it that one end may be swung out from the shuttle While the 'other remains attached thereto; and in connection with such hinging I apply a spring, erwhich eounteracts any tendency of the tension Spring to throwthe pirn from position and holds it firmly iu place while the shuttle is being operated, so that it cannot work loose. lThe end secured to the shuttle is bent round, as seen atf, a recess being cu't into the shuttle for reception of such end, and a. piece, y,.inserted in the outer part of the same, apin, h, extending through the vbent end for the pirn toswing upon without permitting the bent end to be withdrawn. The other end slips into a slot, z', the spring eholding it therein, Vas will be lreadily understood. v It will be obvious that this construction admits of a much readier application andremoval of the spools and of -their greater steadiness when in position than can be obtained in the common arrangement. Y v

I claim, in connection with a device for creating tension upon the bobbin, the arrangement of the pirn to swing and the application of the spring to vkeep'the pirn in normal position withrespect to the shuttle, substantially as described. r

JOHN Y. HAMILTON.

Witnesses:

WILLIAM HAMILTON, GEO. F. OBR. 

